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Doctors Medicines MCQs Q&A

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Multiplication of probabilities is for when the event requires multiple things to happen. (For example, roll a 1 on the first die AND, having done that, roll a 4 on the second die.) The combo event has a probability of (1/6)*(1/6). Addition of probabilities is for when an event can be achieved in multiple ways that can't both happen. (For example, roll EITHER a 1 OR a 4 on a die.) The combo event has a probability of (1/6) + (1/6).

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